EFFECT OF PRUNING LEVELS AND BENZYLADENINE (BA) ON BUDWOOD PRODUCTION IN APPLE (Malus x domestica Borkh.)
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Date
2014
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Publisher
UHF,NAUNI
Abstract
ABSTRACT
The study entitled “Effect of pruning levels and benzyladenine (BA) on
budwood production in apple (Malus x domestica Borkh.)” was conducted in the
experimental apple orchard of Bhajon block in the Department of Fruit Science, Dr. Y
S Parmar University of Horticulture and Forestry, Nauni, Solan (H.P.) during 2012 -2013. The experiment was laid out using Randomized Block Design consisting of 10
treatments replicated thrice. In this experiment different levels of pruning and
benzyladenine (BA) application at the concentration of 500 ppm in four different
cultivars namely, Vance Delicious, Early Red One, Gale Gala and Red Chief were
applied viz., i) Heading Back to 10 cm, ii) Heading Back to 15 cm, iii) Heading Back
to 20 cm, iv) Heading Back to 10 cm + Pinching, v) Heading Back to 15 cm +
Pinching, vi) Heading Back to 20 cm + Pinching, vii) Heading Back to 10 cm + BA
500 ppm, viii) Heading Back to 15 cm + BA 500 ppm, ix) Heading Back to 20 cm +
BA 500 ppm and x) Control. In all there were nine combinations of pruning levels
and BA treatments and were compared with control. The results revealed that
maximum graftable scion wood (64.83 %), total number of shoots (124.33), number
of lateral shoots (111.50), spread (2.40 m) and volume (12.47 m
3
) were recorded in
the trees treated with heading back to 20 cm + BA at 500 ppm. Whereas, average
shoot length (136.00 cm), diameter of thin, standard and thick shoots (3.85, 7.92 and
13.44 mm, respectively), internodal length (2.95 cm), pruning wood weight (5.62 kg
per tree) and leaf area (34.50 cm
2
) was found to be maximum in Heading back to 10
cm in combination with BA application at 500ppm concentration in different apple
cultivars under study.
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